At present, lithium-ion batteries (LIB) are widely used in various types of portable electronics and electric vehicles due to their high energy density, long service life, and low self-discharge. They retain their efficiency well both at room temperature and at temperatures up to + 60˚C. However, at negative temperatures, LIB dramatically lose both energy and power. To create low-temperature LIB, electrolytes with a low freezing point and porous nanostructured active materials are used, which makes it possible to accelerate the kinetics of charge transport. This requires complex synthetic procedures using crystalline inorganic materials. An alternative solution to this problem is the replacement of inorganic cathode materials with organic ones. However, the arguments presented in the literature concerning the acceleration of the kinetics of charge transport in amorphous, porous materials should be valid for various classes of organic compounds. In this regard, it becomes necessary to carry out the work planned within the framework of this project aimed at expanding the boundaries of fundamental knowledge on the electrochemistry of organic electrode materials at low temperatures. It is planned to conduct a comprehensive electrochemical study of a series of polymeric materials similar in structure to the main chain, differing in morphology and electrical conductivity. The study of the processes of mass transfer and charge transfer in various electrolytes will make it possible to establish the dependences of the rate of the process of solvation / desolvation of counterions on the composition of the electrolyte and to propose effective ways to increase the rate of mass transfer, both by adjusting the properties of the material and by selecting the electrolyte. This will create an effective cathode material for batteries operating at low temperatures.
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